I've the above light and as good as it reputedly is I'm struggling to know what the right light settings should be for my tank. The tank size is 940mm long x 320mm deep and 500mm high. So not the biggest tank in the world. The light fitting is 620 wide x 240 deep. The tank has both SPS and LPS. I've messed around for so long trying to find something that's right but just feel it's not getting the best out of my corals. If I run them on pre programmed at 90 or 80% they just too my eye are too bright or am I missing something but constantly trying to dim them down. Through frustration I may need consider alternative lights but it's a shame given these lights are allegedly the best. Any suggestions or programs that others run. Thanks.